Domestication and human demographic history in South America

Objectives: The early groups of hunter-gatherers who peopled South America faced significant ecological changes in their trophic niche for a relatively short period after the initial peopling. In particular, the incorporation of cultigens during the Holocene led to a wider trophic niche and probably...

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Autores principales: Pérez, Sergio Iván, Postillone, María Bárbara, Rindel, Diego
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Antropología
absolute population size
Bayesian methods
calibrated dates
mitochondrial DNA
population dynamic
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/154699
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-154699
record_format dspace
spelling I19-R120-10915-1546992023-06-26T20:10:30Z http://sedici.unlp.edu.ar/handle/10915/154699 Domestication and human demographic history in South America Pérez, Sergio Iván Postillone, María Bárbara Rindel, Diego 2017 2023-06-26T18:32:02Z en Antropología absolute population size Bayesian methods calibrated dates mitochondrial DNA population dynamic Objectives: The early groups of hunter-gatherers who peopled South America faced significant ecological changes in their trophic niche for a relatively short period after the initial peopling. In particular, the incorporation of cultigens during the Holocene led to a wider trophic niche and probably to an increased carrying capacity of the environment. Here, we study the relationship between the incorporation of domestic resources during the Holocene and the demographic dynamics of human populations at a regional scale in South America. Material and methods: We employ mitochondrial DNA (mtDNA), radiocarbon data and Bayesian methods to estimate differences in population size, human occupation and explore the demographic changes of human populations in three regions (i.e., South-Central Andes, Northwest, and South Patagonia). We also use archaeological evidence to infer the main diet changes in these regions. Results: The absolute population size during the later Late Holocene was fifteen times larger in the South-Central Andes than in Northwest Patagonia, and two times larger in the latter region than in South Patagonia. The South-Central Andes display the earlier and more abrupt population growth, beginning about 9000 years BP, whereas Northwest Patagonia exhibits a more slow growth, beginning about 7000–7500 years BP. South Patagonia represents a later and slower population increase. Discussion: In this work we uncovered a well-supported pattern of the demographic change in the populations from South-Central Andes and Patagonia, obtained on the basis of different data and quantitative approaches, which suggests that the incorporation of domestic resources was paramount for the demographic expansion of these populations during the Holocene. Facultad de Ciencias Naturales y Museo Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 44-52
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Antropología
absolute population size
Bayesian methods
calibrated dates
mitochondrial DNA
population dynamic
spellingShingle Antropología
absolute population size
Bayesian methods
calibrated dates
mitochondrial DNA
population dynamic
Pérez, Sergio Iván
Postillone, María Bárbara
Rindel, Diego
Domestication and human demographic history in South America
topic_facet Antropología
absolute population size
Bayesian methods
calibrated dates
mitochondrial DNA
population dynamic
description Objectives: The early groups of hunter-gatherers who peopled South America faced significant ecological changes in their trophic niche for a relatively short period after the initial peopling. In particular, the incorporation of cultigens during the Holocene led to a wider trophic niche and probably to an increased carrying capacity of the environment. Here, we study the relationship between the incorporation of domestic resources during the Holocene and the demographic dynamics of human populations at a regional scale in South America. Material and methods: We employ mitochondrial DNA (mtDNA), radiocarbon data and Bayesian methods to estimate differences in population size, human occupation and explore the demographic changes of human populations in three regions (i.e., South-Central Andes, Northwest, and South Patagonia). We also use archaeological evidence to infer the main diet changes in these regions. Results: The absolute population size during the later Late Holocene was fifteen times larger in the South-Central Andes than in Northwest Patagonia, and two times larger in the latter region than in South Patagonia. The South-Central Andes display the earlier and more abrupt population growth, beginning about 9000 years BP, whereas Northwest Patagonia exhibits a more slow growth, beginning about 7000–7500 years BP. South Patagonia represents a later and slower population increase. Discussion: In this work we uncovered a well-supported pattern of the demographic change in the populations from South-Central Andes and Patagonia, obtained on the basis of different data and quantitative approaches, which suggests that the incorporation of domestic resources was paramount for the demographic expansion of these populations during the Holocene.
format Articulo
Articulo
author Pérez, Sergio Iván
Postillone, María Bárbara
Rindel, Diego
author_facet Pérez, Sergio Iván
Postillone, María Bárbara
Rindel, Diego
author_sort Pérez, Sergio Iván
title Domestication and human demographic history in South America
title_short Domestication and human demographic history in South America
title_full Domestication and human demographic history in South America
title_fullStr Domestication and human demographic history in South America
title_full_unstemmed Domestication and human demographic history in South America
title_sort domestication and human demographic history in south america
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/154699
work_keys_str_mv AT perezsergioivan domesticationandhumandemographichistoryinsouthamerica
AT postillonemariabarbara domesticationandhumandemographichistoryinsouthamerica
AT rindeldiego domesticationandhumandemographichistoryinsouthamerica
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